Carl S. Demars, MD
Hospice and Palliative Medicine (Internal Medicine) Physician · Bath, ME
Carl S. Demars, MD is a hospice and palliative medicine (internal medicine) physician with a practice address in Bath, Maine, and NPI 1215967245, issued on Jul 4, 2006. Check the license (Maine MD15294, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Carl S. Demars
- Credential
- MD
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License numbers
- MD15294 ME
015294 ME
Self-reported in NPPES; status is on the state search - Practice location
- 108 Centre St, Bath, ME 04530
- Phone
- (207) 373-1800
- Enumerated
- Jul 4, 2006
- Record last updated
- Jul 30, 2025
- Fax
- (207) 442-9822
- Medicare enrollment
- Enrolled (PECOS I20040617001334); accepts Medicare assignment
- Medical or professional school
- Wake Forest University School Of Medicine, 1997
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (internal medicine) physician records → All 13 in Maine → Look up another NPI →
Also registered at 108 Centre St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Margaret Duhamel, MDInternal Medicine Physician1215112230
- Cody Eaton, PACPhysician Assistant1487326104
- Amy Etzweiler, MDInternal Medicine Physician1568469401
- Alexander FiorentinoInternal Medicine Physician1093246522
- Catherine Fredricks-Rehagen, DOInternal Medicine Physician1821257650
- Scott French, MDInternal Medicine Physician1578564357
Verify Carl S. Demars in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD15294Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024
26 Medicare Part D claims, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- MainehealthBath, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carl S. Demars among 13 hospice and palliative medicine (internal medicine) physician records in Maine
Carl S. Demars, MD is one of 13 hospice and palliative medicine (internal medicine) physician records with a practice address in Maine. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Record last updated2025 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Internal Medicine) Physician providers in Maine
There are 13 hospice and palliative medicine (internal medicine) physician records in Maine.
All 13 in Maine → Every provider in Bath → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →
The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes
- David Martin, DOBangor, ME 044011619240652
- Paul Tan, M.D.Bangor, ME 044011679810188
- Robert Dohner, DOAugusta, ME 043301154315620
- Roger Austin, M.D.Auburn, ME 042101710900287
- Katherine Ferguson, MDPortland, ME 041021891229829
- David Giansiracusa, MDPortland, ME 041021184719916
- Rebecca Hutchinson, MDPortland, ME 041021215083068
- Marjorie Zyirek-Bacon, MDPortland, ME 041021427017417
Common questions
What is Carl S. Demars, MD's NPI number?
Carl S. Demars, MD's National Provider Identifier (NPI) is 1215967245, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Carl S. Demars, MD located?
The NPPES record lists a practice address at 108 Centre St, Bath, ME, 04530. Phone: (207) 373-1800. Providers update this record themselves, so call before visiting.
How can I verify Carl S. Demars, MD's license?
NPPES lists Maine license number MD15294, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Carl S. Demars, MD prescribe under Medicare Part D?
In 2024, Carl S. Demars, MD had 26 Medicare Part D claims; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. Part D covers Medicare prescriptions only.
What is Carl S. Demars, MD's MIPS final score?
The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.